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# Understanding Randomness - PowerPoint PPT Presentation

Understanding Randomness . Ch. 11. Randomness. Can not guess outcome ahead of time “Fair” selection between outcomes A pain in the butt in Unit I and II A necessary and useful tool in Unit III (and all of statistics). Using Randomness.

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## PowerPoint Slideshow about ' Understanding Randomness ' - riva

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Presentation Transcript

### Understanding Randomness

Ch. 11

• Can not guess outcome ahead of time

• “Fair” selection between outcomes

• A pain in the butt in Unit I and II

• A necessary and useful tool in Unit III (and all of statistics)

We will imitate real processes to manipulate, control, and understand them using simulation

• The sequence of events we want to investigate is called a trial.

• The basic building block of a simulation is called a component.

• Trials usually involve several components.

• After the trial, we record what happened—our response variable.

Think, Show, Tell

• Thinkfirst. Know where you are headed and why.

• Show your work. The mechanics of the calculation are important but can not exist on there own.

• Tellyour conclusion in the context of the problem

• Identify the component to be repeated.

• Explain how you will model the component’s outcome.

• Explain how you will combine the components to model a trial.

• State clearly what the response variable is.

• Run several trials.

• Collect and summarize the results of all the trials.

• State your conclusion in the context of the problem.